I'd like to specifically highlight the PowerShell camp Jeffery Hicks is organizing in Columbus, Ohio at the end of July:

* July 27-29, 2009 – comprehensive three day training from PowerShell basics to advanced real-life scripting.

* July 30-31, 2009 – advanced PowerShell training including advanced work with registry, permissions, databases, and a full day of Active Directory management!

Jeffery is the author of the one and only AD PowerShell management book, and multiple other books and training courses on PowerShell, and a PowerShell MVP. So if you can make it to any (or both) of these trainings I would highly recommend that you do.